Automated vision inspection of a side curtain airbag assembly

摘要

An automated vision inspection system detects whether a cushion of a side curtain airbag assembly system is twisted. The cushion is provided a plurality of markings arrayed along a longitudinal extent of the cushion. Each marking can be defined by a group of four distinct characters or indicia. Each indicium can be defined by polygonal shaped pixels which allow the inspection system to find clear edges of the marking and thereby determine marking orientation. By determining orientation, the inspection system can compare the inspected marking to a master image of the marking to determine if the cushion is in a twisted state or non-twisted state.

主权项

1. An automated vision inspection system for detecting whether a cushion of a side curtain airbag assembly system is in a properly installed or twisted state, the system comprising:
a plurality of markings arrayed along a longitudinal extent of one of a cushion or a sleeve covering the cushion of a side cushion airbag assembly, each marking being defined by a pair of stacked indicia, each indicium of the pair of stacked indicia defined by a plurality of polygonal shaped pixels; a detector configured to capture digital images of the plurality of markings; and a controller configured to process the digital images captured by the detector and to determine presence of the indicia of the plurality of markings to assess an installed condition of the cushion or sleeve by comparison of the digital images to master images.